Altitude Developmental Testing of the J-2S Rocket Engine in Propulsion Engine Test Cell (J-4) (Tests J4-1902-05 through J4-1902-07)

Abstract

Seven idle-mode firings of the J-2S rocket engine (S/N J-112-1) were conducted. The objectives of these firings were to determine the effect of restricting fuel bypass and thrust chamber film coolant flows on fuel density at the injector and idle-mode performance. Reduction of fuel bypass flow from 2 lbm/sec to zero resulted in a 20-percent reduction in calculated fuel density at the injector; reduction of film coolant flow from 1 lbm/sec to zero apparently had no effect on calculated density at the injector. Essentially no performance differences were noted in engine steady-state, idle-mode performance because of reduction of these flows. No significant engine damage was sustained on any of the firings. Total accumulated engine idle-mode firing duration was 656.5 sec.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1969
Accession Number
AD0860397

Entities

People

  • C. H. Kunz
  • W. W. Muse

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Weapons Technologies

DTIC Thesaurus Topics

  • Chambers
  • Combustion
  • Combustion Chambers
  • Data Acquisition
  • Engine Components
  • Engines
  • Fuel Injection
  • Fuel Injectors
  • Fuel Systems
  • Ignition
  • Measurement
  • Pressure Measurement
  • Pumps
  • Recording Systems
  • Rocket Engines
  • Steady State
  • Thrust Chambers

Fields of Study

  • Physics

Readers

  • Aerospace Engineering
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  • Nuclear and Radiation Engineering.